CN204456985U - A Noise Reduction Generator Room for Combined Cooling, Heating and Power Supply System - Google Patents

Abstract

The utility model relates to a generator field, concretely relates to type of making an uproar generator room falls of cooling, heating and power cogeneration system, inside including computer lab door, computer lab, be located the inside generator of computer lab, install the ground of generator, hang down and locate the outer wall at ground four sides with erect in roof on the outer wall, be equipped with air inlet amortization groove and UNICOM in the outer wall the inside air intake of outer wall and computer lab, be equipped with air-out amortization groove and UNICOM in the roof the inside air outlet of roof and computer lab, the outer wall is close to the inside one side of computer lab and is equipped with the sound wall body of inhaling, the roof is close to the inside one side of computer lab and is equipped with the sound smallpox of inhaling, inhale the sound wall body with the air intake corresponds the position and is equipped with first breach. The utility model discloses an adopt means such as vibration isolation, noise elimination, sound absorption, sound insulation, furthest's reduction the noise in the generator room to make the noise of generator room accord with the environmental protection standard.

Description

A Noise Reduction Generator Room for Combined Cooling, Heating and Power Supply System

technical field

The utility model relates to the field of generators, in particular to a noise-reducing generator room for a combined cooling, heating and power supply system.

Background technique

The combined cooling, heating and power system is developed on the basis of combined heating and power supply. It is the main direction and form of distributed energy development, and it is also one of the important directions for the development of the world's second-generation energy technology. It is a comprehensive energy production and energy consumption system based on energy cascade utilization. It is scattered near the user end. Firstly, the primary energy is used to drive the engine to supply power, and then various waste heat utilization equipment is used to recycle the waste heat, and finally achieve higher energy efficiency. Multifunctional goals such as energy efficiency, lower energy costs, higher energy supply security, and better environmental performance. It can be seen that the advantages of combined cooling, heating and power supply are in line with the current general trend of coordinated development of energy and environment. Therefore, it has received more and more attention at home and abroad, and the research has continued to deepen.

When realizing the combined cooling, heating and power system, it is necessary to build a large generator room. As we all know, generators generate powerful noise during operation, which can reach more than 110 decibels. If necessary noise reduction measures are not taken, it will not only reduce production efficiency, but also greatly damage the health index of operators and surrounding environmental organisms. On the other hand, Under the national call for energy conservation, emission reduction and green energy conservation, it is particularly important to protect and improve environmental quality. In the "Standards for Noise at the Boundary of Industrial Enterprises" (GB12348-90), it is stipulated that the standard value of daytime noise at the boundary of industrial enterprises is 65 decibels. The standard value of noise at night is 55 decibels, but the noise of the existing generator room is far from meeting the standard.

Therefore, taking effective measures to control the generation and propagation of noise is an important means to control noise pollution in generator rooms, and it is also a major problem that needs to be solved urgently in the combined cooling, heating and power system.

Utility model content

In order to solve the above problems, the utility model provides a noise-reducing generator room for a combined cooling, heating and power supply system, which can reduce noise through vibration isolation, noise elimination, sound absorption, sound insulation, etc., and achieve the purpose of environmental protection.

The technical solution adopted by the utility model is: a noise-reducing generator room for combined cooling, heating and power supply system, including the machine room door, the inside of the machine room, the generator located inside the machine room, and the foundation on which the generator is installed. . The outer walls vertically arranged on the four sides of the foundation and the roof erected on the outer walls, characterized in that, the outer walls are provided with air inlet silencers and air inlets connecting the outer walls and the interior of the machine room, The roof is provided with an air outlet sound-absorbing groove and an air outlet connecting the roof and the inside of the machine room, the side of the outer wall close to the inside of the machine room is provided with a sound-absorbing wall, and the side of the roof close to the inside of the machine room is provided with a sound-absorbing ceiling, The sound-absorbing wall is provided with a first notch at a position corresponding to the air inlet, and the sound-absorbing ceiling is provided with a second notch at a position corresponding to the air outlet.

A further improvement to the above technical solution is that the air inlet muffler and the outlet air muffler include two channel steels arranged in parallel, a galvanized plate connecting the two channel steels with a gap between them and filling the galvanized steel Sound-absorbing rock wool inside the panels.

A further improvement to the above technical solution is that the thickness of the galvanized sheet is preferably 0.7 mm, and the thickness of the sound-absorbing rock wool is preferably 100 mm.

A further improvement to the above technical solution is that a fire damper is provided at both the air inlet and the air outlet, and an axial flow fan for drawing air is also arranged at the air outlet.

A further improvement to the above technical solution is that the sound-absorbing ceiling includes a perforated plate that is flatly connected to the roof, and the side of the perforated plate that is opposite to the roof is covered with a layer of fiber cloth, and on the perforated plate A plurality of sound-absorbing units with sound-absorbing chambers protruding from the surface of the perforated plate are connected at intervals, the sound-absorbing units are filled with sound-absorbing rock wool, and the other side of the sound-absorbing units is connected with a sound-absorbing wall.

A further improvement to the above technical solution is that the perforated plate (161) is made of a material with high porosity and soft quality.

A further improvement to the above technical solution is that the door of the machine room is a double-layer steel plate composite structure, filled with glass wool sound-absorbing material, and the door of the machine room and the door frame are sound-proof doors sealed with felt and sweeping rubber skins with oblique cuts. .

A further improvement to the above technical solution is that the thickness of the glass wool sound-absorbing material is 45-50 mm, and the thickness of the machine room door is 80-85 mm.

A further improvement to the above technical solution is that the generator (110) is elastically connected to the foundation (120).

Compared with the prior art, the noise-reducing generator room of the combined cooling, heating and power supply system described in the utility model has the following beneficial effects:

The utility model reduces the noise in the generator room to the greatest extent by adopting methods such as vibration isolation, noise elimination, sound absorption, and sound insulation, so that the noise in the generator room meets the environmental protection standard.

First, the rigid connection between the generator and the foundation is changed to an elastic connection, and the vibration isolation effect of the elastic device is used to weaken the energy transfer between the generator and the foundation, reduce the impact of vibration on the environment, and achieve the purpose of vibration isolation.

Second, the air inlet and outlet silencers are adopted. The air enters the machine room through the inlet and outlet silencers, and the outlet air silencers can effectively block the noise from the outside of the machine room. At the same time, through the inlet and outlet silencers, The air is circulated to reduce the temperature inside the machine room, ensuring a good operating environment for the generator and facilitating the normal operation of the operator under high temperature.

Third, use sound-absorbing walls and sound-absorbing ceilings to prevent the rigid diffusion of the sound source. Hang a sound-absorbing wall on the outer wall of the sound source to prevent the sound source from spreading to the outside through the outer wall. The surface of the sound-absorbing wall is decorated with perforated panels , and its sound insulation is 35 decibels. At the same time, the sound-absorbing ceiling is made of soft, high-porosity materials, and its sound-absorbing effect is better. The sound-absorbing ceiling is divided into three layers, the first layer is sound-absorbing body, the second layer is fiber cloth, and the third layer is perforated board. Its noise reduction can reach 40 decibels.

Fourth, the machine room door is a double-layer steel plate composite structure, filled with glass wool sound-absorbing material, the machine room door and the door frame are sealed with oblique cut felt and sweeping rubber skin, which can effectively insulate the sound. Thereby ensuring the sound attenuation effect of the sound attenuation groove.

Description of drawings

Fig. 1 is a schematic diagram of the noise-reducing generator room of the cogeneration system of the utility model embodiment.

Fig. 2 is a structural schematic diagram of the muffler tank of the noise-reducing generator room of the cogeneration system of the utility model embodiment.

Fig. 3 is a structural schematic diagram of the sound-absorbing ceiling of the noise-reducing generator room of the cogeneration system of the utility model embodiment.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings.

Example:

Referring to Fig. 1 , a noise-reducing generator room 100 of a combined cooling, heating and power system of the present invention includes a machine room door, the inside of the machine room, a generator 110 inside the machine room, a foundation 120 on which the generator 110 is installed, a vertical The outer walls 130 on the four sides of the foundation 120 and the roof 140 erected on the outer wall 130 are elastically connected between the generator 110 and the foundation 120, and the vibration isolation effect of the elastic device is used to weaken the vibration between the generator 110 and the foundation 120. Energy transmission reduces the impact of vibration on the environment and achieves the purpose of vibration isolation.

The outer wall 130 is provided with an air inlet muffler groove 132 and an air inlet 131 connecting the outer wall 130 and the inside of the computer room. The air inlet 131 is provided with a fire damper 170 to prevent the gas entering the computer room from catching fire and ensure the combined cooling, heating and power supply system The noise reduction type generator room 100 for safety. The roof 140 is provided with an air outlet silencing groove 142 and an air outlet 141 connecting the roof 140 and the inside of the machine room. The air outlet 141 is provided with a fire damper 170 and an axial flow fan 180 for drafting, so that the gas inside the machine room is extracted.

As shown in FIG. 2 , it is a structural schematic diagram of the noise reduction groove 132 . The air inlet muffler groove 132 and the air outlet muffler groove 142 include two channel steels 133 arranged in parallel, a galvanized plate 134 connecting the two channel steels 133 with gaps, and sound-absorbing rock wool 135 filled in the galvanized plate 134 . In this embodiment, the thickness of the galvanized sheet 134 is 0.7 mm, and the thickness of the sound-absorbing rock wool 135 is 100 mm. The air enters the machine room through the air-inlet muffler groove 132, and the air-out muffler groove 142 can effectively block the noise from being transmitted to the outside of the machine room. reduce, to ensure a good operating environment for the generator, and to facilitate the normal operation of operators at high temperatures.

A sound-absorbing wall 150 is provided on the side of the outer wall 130 close to the interior of the machine room to prevent the rigid diffusion of the sound source and to prevent the sound source from spreading to the outside through the outer wall 130. The surface of the sound-absorbing wall 150 is decorated with perforated panels, and its sound insulation is 35 decibel.

The roof 140 is provided with a sound-absorbing ceiling 160 on the side close to the inside of the machine room, the sound-absorbing wall 150 is provided with a first notch 151 at a position corresponding to the air inlet 131, and the sound-absorbing ceiling 160 is provided with a second notch 161 at a position corresponding to the air outlet 141. The notch 151 and the second notch 161 facilitate the inflow and outflow of gas into and out of the machine room.

As shown in FIG. 3 , it is a schematic structural diagram of the sound-absorbing ceiling 160 . The sound-absorbing ceiling 160 includes a perforated plate 161 tiled and connected on the roof 140. The side of the perforated plate 161 opposite to the roof 140 is covered with a layer of fiber cloth 162. On the perforated plate 161, a plurality of holes protruding from the surface of the perforated plate 161 are connected at intervals. The sound-absorbing unit 163 with a sound-absorbing chamber is filled with sound-absorbing rock wool 164, the other side of the sound-absorbing unit 163 is connected with a sound-absorbing body 165, and the perforated plate 151 is made of a high-porosity and soft material. The perforated plate of the sound-absorbing ceiling 160 is made of soft and high-porosity material, and its sound-absorbing effect is better. The sound-absorbing ceiling 160 is divided into three layers, and through the joint action of the perforated plate 161 , the fiber cloth 162 and the sound-absorbing body 165 , the noise reduction can reach 40 decibels.

The machine room door is a double-layer steel plate composite structure, filled with glass wool sound-absorbing materials, and the machine room door and door frame are sound-proof doors sealed with oblique cuts covered with felt and floor-sweeping rubber skins. The thickness of the glass wool sound-absorbing material is 45-50mm, and the thickness of the machine room door is 80-85mm. It can effectively carry out sound insulation, so as to ensure the sound attenuation effect of the sound attenuation groove.

The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (9)

1. A noise-reducing generator room for a combined cooling, heating and power supply system, comprising a machine room door, the inside of the machine room, a generator (110) located inside the machine room, and a foundation (120) on which the generator (110) is installed ), the outer wall (130) vertically installed on the four sides of the foundation (120) and the roof (140) erected on the outer wall (130), characterized in that, the outer wall (130) is equipped with The wind silencing groove (132) and the air inlet (131) in the exterior wall (130) of Unicom and the inside of the machine room, the roof (140) is provided with the wind silencing groove (142) and the roof (140) and the Unicom The air outlet (141) inside the machine room, the side of the outer wall (130) close to the inside of the machine room is provided with a sound-absorbing wall (150), and the side of the roof (140) close to the inside of the machine room is provided with a sound-absorbing ceiling (160), so The sound-absorbing wall (150) is provided with a first notch (151) at a position corresponding to the air inlet (131), and the sound-absorbing ceiling (160) is provided with a second notch at a position corresponding to the air outlet (141) (161). 2. The noise-reducing generator room of the combined cooling, heating and power system according to claim 1, characterized in that: the air inlet silencer (132) and the outlet air silencer (142) comprise two parallel A channel steel (133), a galvanized sheet (134) connecting the two channel steels (133) and arranged in gaps, and sound-absorbing rock wool (135) filled in the galvanized sheet (134). 3. The noise-reducing generator room of the combined cooling, heating and power system according to claim 2, characterized in that: the thickness of the galvanized sheet (134) is preferably 0.7 mm, and the thickness of the sound-absorbing rock wool (135) The thickness is preferably 100 mm. 4. The noise-reducing generator room of a combined cooling, heating and power system according to claim 1, characterized in that fire dampers are provided at both the air inlet (131) and the air outlet (141) (170), the air outlet (141) is also provided with an axial flow fan (180) for drafting. 5. The noise-reducing generator room of the combined cooling, heating and power system according to claim 1, characterized in that: the sound-absorbing ceiling (160) includes a perforated plate ( 161), the side of the perforated plate (161) opposite to the roof (140) is covered with a layer of fiber cloth (162), and a plurality of protrusions protruding from the perforated holes are connected at intervals on the perforated plate (161). A sound-absorbing unit (163) with a sound-absorbing chamber on the surface of the board (161), the sound-absorbing unit (163) is filled with sound-absorbing rock wool (164), and the other side of the sound-absorbing unit (163) is connected with a sound-absorbing wall body (165). 6. The noise-reducing generator room of the cogeneration system according to claim 5, characterized in that: the perforated plate (161) is made of a material with high porosity and soft quality. 7. According to the noise-reducing generator room of the combined cooling, heating and power system according to any one of claims 1-6, it is characterized in that: the door of the machine room is a double-layer steel plate composite structure, filled with glass wool Sound-absorbing materials, machine room doors and door frames are sound-proof doors sealed with oblique cuts wrapped in felt and floor-sweeping rubber skins. 8. According to the noise-reducing generator room of the combined cooling, heating and power system according to claim 7, it is characterized in that: the thickness of the glass wool sound-absorbing material is 45-50mm, and the thickness of the machine room door is 80-85mm . 9. The noise-reducing generator room of the combined cooling, heating and power system according to claim 8, characterized in that: the generator (110) and the foundation (120) are elastically connected.